Study overview
| Phases | Aims | Methods | Participants |
|---|---|---|---|
| Phase 1. The modelling study | Step 1: Identifying areas to be changed from the original GSD. Step 2: Adapting the GSD to patients with T2DM, and for internet delivery. | Qualitative approaches with individual interviews in both steps, using qualitative content analysis. A resource group (12 in total) together with a group of user representatives (5 in total) identified adjustments applicable to adults with T2DM and for internet delivery. | Step 1: Eight patients with T2DM recruited from GPs. Step 2: Eight patients with T2DM recruited from GPs. |
| Phase 2. The feasibility study | Pretesting the adapted GSD intervention on the web and assessing its feasibility. | Quantitative: Pre–post design. Qualitative: Individual interviews at the end of the programme, using qualitative content analysis. | 40 patients with T2DM who have participated in the web-based GSD adapted for T2DM will be recruited from GPs. |
| Phase 3. The evaluation study | Evaluating the effectiveness of a structured theory-driven web-based GSD intervention on self-management behaviours and HbA1c. | Quasi-experimental design with outcome assessments at baseline, end of programme and 6-month postprogramme. | A total of 172 patients with T2DM will be recruited from GPs (intervention group n=86, control group n=86). |
GP, general practitioners; GSD, Guided Self-Determination; HbA1c, glycosylated haemoglobin; T2DM, type 2 diabetes.